Handle missing and multiple values in script #30257
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Previously in script for numeric fields, there was no way to check if
a document is missing a value. Also certain operations on multiple-
values fields were missing.
This PR adds the following:
- add the following functions for multiple-valued numeric fields:
doc['field'].min returns the minumum amoung values
doc['field'].max returns the maximum amoung values
doc['field'].sum returns the sum of amoung values
doc['field'].avg returns the average of values
- return null for doc['field'] if a document is missing a 'field1':
Now we can do this:
if (doc['field'] == null) {return -1;} return doc['field'].value; or
doc['field']?.value ?: -1
This new behaviour will only work is the following system property is set:
`export ES_JAVA_OPTS="-Des.script.null_for_missing_value=true"'
Closes elastic#29286
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Previously in script for numeric fields, there was no way to check if
a document is missing a value. Also certain operations on multiple-
values fields were missing.
This PR adds the following:
add the following functions for multiple-valued numeric fields:
doc['field'].min returns the minumum amoung values
doc['field'].max returns the maximum amoung values
doc['field'].sum returns the sum of amoung values
doc['field'].avg returns the average of values
return null for doc['field'] if a document is missing a 'field1':
Now we can do this:
if (doc['field'] == null) {return -1;} return doc['field'].value; or
doc['field']?.value ?: -1
This new behaviour will only work if the following system property is set:
`export ES_JAVA_OPTS="-Des.script.null_for_missing_value=true"'
Closes #29286